🔍 User Agent Parser

Parse and analyze browser user agent strings

Your Current User Agent
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Parse Custom User Agent
Parsed Information
Common User Agents
Tools

🔍 Complete Guide to User Agent Parser

Parse user agents instantly - detect browser, OS, and device information

A User Agent Parser is an essential tool for analyzing browser and device information. Whether you're debugging websites, analyzing traffic, or testing compatibility, our parser provides instant detailed information from user agent strings.

🎯 What is a User Agent?

A user agent is a string that browsers and applications send to web servers, identifying the browser, operating system, device type, and version. This information helps websites deliver appropriate content and optimize user experience.

Example: Mozilla/5.0 (Windows NT 10.0; Win64; x64) Chrome/120.0.0.0

🔑 Key Features

  • Instant Parsing: Analyze user agents in real-time
  • Detailed Info: Browser, OS, device, version details
  • Auto-Detection: Detect your current user agent
  • Common Presets: Test with popular user agents
  • Copy Results: Export parsed information
  • Mobile Detection: Identify mobile devices
  • Always Free: No subscriptions

💡 Common Uses

  • Web Development: Test browser compatibility
  • Analytics: Analyze visitor browser data
  • Debugging: Troubleshoot browser-specific issues
  • Security: Detect suspicious user agents
  • Responsive Design: Test device detection
  • Bot Detection: Identify crawlers and bots

❓ FAQ

What information does a user agent contain?

User agents typically include: browser name and version, operating system and version, device type (desktop/mobile/tablet), rendering engine, and sometimes additional plugins or capabilities.

Can user agents be spoofed?

Yes! Users can change their user agent string through browser settings or extensions. This is why user agents shouldn't be relied upon for security, only for optimization and analytics.

Why do user agents look so complex?

User agent strings evolved over time with backward compatibility in mind. They contain historical information to ensure websites work across different browsers and versions.

How do I use this for responsive design?

Parse user agents to detect mobile devices and serve appropriate layouts. However, modern best practice is to use CSS media queries instead of server-side user agent detection.

Common User Agent Components

Browser: Chrome, Firefox, Safari, Edge

OS: Windows, macOS, Linux, Android, iOS

Device: Desktop, Mobile, Tablet

Engine: Blink, Gecko, WebKit

Start parsing user agents now - detailed browser information is just one click away!